Ornamental chain



FIG. 1 is a perspective view of a portion of chain showing my new design;

FIG. 2 is a top plan view thereof, the bottom plan view being identical;

FIG. 3 is a left side elevational view thereof, the right side view being identical;

FIG. 4 is a bottom end elevational view thereof;

FIG. 5 is a top end elevational view thereof; and,

FIG. 6 is a left side elevational view of one link thereof, the right side elevational view being identical. 

The ornamental design for an ornamental chain, as shown and described. 